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clamshell

noun

clam·​shell ˈklam-ˌshel How to pronounce clamshell (audio)
1
: the shell of a clam
2
a
: a bucket or grapple (as on a dredge) having two hinged jaws
b
: an excavating machine having a clamshell
c
: either of a pair of doors (as in an airplane tail) that open out and away from each other
d
: a hinged container, case, or cover that opens like the shell of a clam

Examples of clamshell in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The clamshell design speeds your packing, while the LightWire frame, ventilated Airscape backpanel, and hipbelt ease the carry. Outside, 17 Nov. 2025 But instead of a simple clamshell body and inflatable cabin tent, Mitsubishi imagines it having a multipart expansion system that starts with the glassy slide-out module shown up top and continues with a rear tailgate, lift-up side hatch and slide-out kitchen. New Atlas, 29 Oct. 2025 The basement housed a beauty shop and barber shop, with shimmering, psychedelic floral wallpaper, and a clamshell phone booth. Piet Levy, jsonline.com, 21 Oct. 2025 Zauner, who’s wrapping up her own tour this fall, brought a piece of her set design, a giant clamshell, to Roan’s stage. Kristen Tauer, Footwear News, 13 Oct. 2025 See All Example Sentences for clamshell

Word History

First Known Use

circa 1520, in the meaning defined at sense 1

Time Traveler
The first known use of clamshell was circa 1520

Browse Nearby Words

Cite this Entry

“Clamshell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clamshell. Accessed 5 Dec. 2025.

Kids Definition

clamshell

noun
clam·​shell ˈklam-ˌshel How to pronounce clamshell (audio)
: the shell of a clam

More from Merriam-Webster on clamshell

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